A Feasibility Study of Organic Solvent Comtaminated Soil Treated by Incineration and Bio-Composting

• Main Authors: Yu-Lin Cheng, 鄭育麟
• Other Authors: none
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/63152706758582566724

碩士 === 國立高雄第一科技大學 === 環境與安全衛生工程所 === 91 === The aims of this study were to examine the treatment of organic solvent contaminated soil by direct incineration and biological methods in a particular case in Erlun, Yunlin. In the heat treatment process, the contaminated soil which mixed with non-hazardous industrial wastes was burned by the fluidized bed incinerator. It used GC/MS to analyze the VOC concentrations of the soil before and after treating. In the bio-composting process, the contaminated soil was mixed with four kinds of dissimilar partition to seed , and proceeded semi-anaerobic fermentation. The temperature and the VOC concentrations of the soil before and after bio-composting were recorded. Results revealed that the Destruction and Removal Efficiency(DRE) could be higher than 99.998% after burning and the ash of the organic concentrated residues could be lower than 0.0173mg/kg. The gas emission also would conform to environmental regulations. By using biological composting, the vaporizing efficiency of volatile organic contaminats is around 14-98%. The VOCs variability is still high. The cost of direct incineration and biological treatment are 7650 NT$/ton and 8900NT$/ton, respectively. Therefore, we conclude that incineration can be considered to be a good alternative direct to treat organic solvent contaminated soil.